Cloudstone Curio [Ravnica: City of Guilds] Duel only chance

only chance

Set: Coldsnap Type: Instant Rarity: Rare Cost: {5}{B}{B} You may exile two black cards from your hand rather than pay this spell's mana cost

annihilator 6

Set: Arabian Nights Type: Creature — Human Rogue Rarity: Uncommon Cost: {R} {R}: Tap target Wall

you may draw two additional cards

Cloudstone Curio [Ravnica: City of Guilds] Duel only chanceSet: Ravnica: City of Guilds Type: Artifact Rarity: Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control, you may return another permanent you control that shares a permanent type with it to its owner's hand. It *wants* to remain a mystery, banishing the curious in favor of less inquisitive company.